11 小銘自我監測尖峰呼氣流速理想值為 400(l/min),此次回診吹出 280(l/min)。請問就氣喘診療指引判斷小銘處於何種嚴重度?(A) intermittent asthma(B) mild intermittent presisten asthma(C) mild presisten asthma(D) moderate presisten asthma(E) sever presisten asthma